<template>
  <div class="header">
    <!-- 折叠按钮 -->
    <div class="collapse-btn"
         @click="collapseChage">
      <i v-if="!collapse"
         class="el-icon-s-fold"></i>
      <i v-else
         class="el-icon-s-unfold"></i>
    </div>
    <div class="logo">管理系统</div>
    <div class="header-right">
      <div class="header-right-tab" style="flex-grow:1;">
      </div>
      <div class="header-user-con">
        <!-- 全屏显示 -->
        <div class="btn-fullscreen"
             @click="handleFullScreen">
          <el-tooltip effect="dark"
                      :content="fullscreen?`取消全屏`:`全屏`"
                      placement="bottom">
            <i class="el-icon-rank"></i>
          </el-tooltip>
        </div>
        <!-- 用户头像 -->
        <div class="user-avator">
          <img src="../../assets/img/img.jpg" />
        </div>
        <!-- 用户名下拉菜单 -->
        <el-dropdown class="user-name"
                     trigger="click"
                     @command="handleCommand">
          <span class="el-dropdown-link">
            {{username.realname}}
            <i class="el-icon-caret-bottom"></i>
          </span>
          <el-dropdown-menu slot="dropdown">
            <el-dropdown-item divided
                              command="uploadUser">修改密码</el-dropdown-item>
            <el-dropdown-item divided
                              command="loginout">退出登录</el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
      </div>
    </div>
  </div>
</template> 
<script>
import bus from "@/utils/bus";
export default {
  data () {
    return {
      collapse: false,
      fullscreen: false,
      name: '管理员',
      message: 0,
      activeIndex: '0',
      authTreeList:[],
      max_number:0,
      treeList:[
        {auth_name:'数据中心',status:0},
        {auth_name:'招展管理',status:0},
        {auth_name:'观众管理',status:0},
        {auth_name:'展会活动管理',status:0},
        {auth_name:'财务管理',status:0},
        {auth_name:'权限管理',status:0},
        {auth_name:'合同管理',status:0},
        {auth_name:'日志管理',status:0},
      ]
    };
  },
  computed: {
    username () {
      let userInfo = localStorage.getItem('userInfo');
      return userInfo ? JSON.parse(userInfo) : {realname:this.name};
    }
  },
  created(){},
  methods: {
    // 用户名下拉菜单选择事件
    handleCommand (command) {
      if (command == 'loginout') {
        const loading = this.$loading({text: '退出中...'});
        this.$http.post(this.$API.LOGOUT,{})
                .then((res)=>{
                  loading.close();
                  console.log('登录信息',res)
                  if(res.code == 1){
                    window.sessionStorage.removeItem('userName')
                    window.sessionStorage.removeItem('jqzxUserId')
                    bus.$emit("global-close-open", false);
                    this.$router.push('/login');
                  }else{
                    this.$message.error(res.msg);
                  }
                })
                .catch((err)=>{
                  loading.close();
                  this.$message.error('网络错误');
                })
      }else if(command == 'uploadUser'){//修改密码
        this.$router.push('/setPassword');
      }
    },
    // 侧边栏折叠
    collapseChage () {
      this.collapse = !this.collapse;
      bus.$emit('collapse', this.collapse);
    },
    // 全屏事件
    handleFullScreen () {
      let element = document.documentElement;
      if (this.fullscreen) {
        if (document.exitFullscreen) {
          document.exitFullscreen();
        } else if (document.webkitCancelFullScreen) {
          document.webkitCancelFullScreen();
        } else if (document.mozCancelFullScreen) {
          document.mozCancelFullScreen();
        } else if (document.msExitFullscreen) {
          document.msExitFullscreen();
        }
      } else {
        if (element.requestFullscreen) {
          element.requestFullscreen();
        } else if (element.webkitRequestFullScreen) {
          element.webkitRequestFullScreen();
        } else if (element.mozRequestFullScreen) {
          element.mozRequestFullScreen();
        } else if (element.msRequestFullscreen) {
          // IE11
          element.msRequestFullscreen();
        }
      }
      this.fullscreen = !this.fullscreen;
    },
  },
  mounted () {
    if (document.body.clientWidth < 1500) {
      this.collapseChage();
    }
  }
};
</script>
<style scoped>
.el-menu,
.el-menu--horizontal {
    border: 0 !important;
    margin-top: 10px !important;
}
.header {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    height: 70px;
    font-size: 22px;
    color: #fff;
}
.collapse-btn {
    float: left;
    padding: 0 21px;
    cursor: pointer;
    line-height: 70px;
}
.header .logo {
    float: left;
    width: 250px;
    line-height: 70px;
}
.header-right {
    padding-right: 50px;
    display: flex;
}
.header-right-tab {
    flex-flow: 1;
}
.header-user-con {
    display: flex;
    height: 70px;
    align-items: center;
}
.btn-fullscreen {
    transform: rotate(45deg);
    margin-right: 5px;
    font-size: 24px;
}
.btn-bell,
.btn-fullscreen {
    position: relative;
    width: 30px;
    height: 30px;
    text-align: center;
    border-radius: 15px;
    cursor: pointer;
}
.btn-bell-badge {
    position: absolute;
    right: 0;
    top: -2px;
    width: 8px;
    height: 8px;
    border-radius: 4px;
    background: #f56c6c;
    color: #fff;
}
.btn-bell .el-icon-bell {
    color: #fff;
}
.user-name {
    margin-left: 10px;
}
.user-avator {
    margin-left: 20px;
}
.user-avator img {
    display: block;
    width: 40px;
    height: 40px;
    border-radius: 50%;
}
.el-dropdown-link {
    color: #fff;
    cursor: pointer;
}
.el-dropdown-menu__item {
    text-align: center;
}
</style>
